Performance Verification
4-24 2715 Spectrum Analyzer Service Manual
2. Select the following settings on the Spectrum Analyzer:
VERTICAL SCALE 10 dB/
DISPLAY STORAGE Off
SWEEP RATE 1ms/DIV
3. Enable external video by pressing DSPL 7. The S pectrum Analyzer
automatically selects ZERO SPAN.
4. Connect a 100 kHz square wavesignal to Pin 1 of J103 on the rear panel of
the Spectrum Analyzer. See Figure 4 --4.
5. Set the Function Generator output for 1 division or less of signal at the top of
the screen. Use an external attenu ator if necessary.
6. Enable internal triggeringby pressing SWP/TRIG 1.
7. Check that the trigger LEVEL control can be set for a triggereddisplay.
8. Using another cable and T Adapter,connect the same square wave source to
the EXT TRIG input (J102) on the Spectrum Analyzer rear panel.
9. Set the generator controlsfor a 15 Hz, 2 Vp-p signal.
10. Enable external triggeringby pressing SWP/TRIG 2.
11. Press SWEEP ↑until the readout reads 10MS/.
12. Check that the trigger LEVEL control can be set for a triggereddisplay.
13. Remove the cable from the EXT TRIG input.
14. Enable line triggering by pressing SWP/TRIG3.
15. Check that the trigger LEVEL control can be set for a visible display.The
display will not be stable.
16. Disconnect the Function Generatorfrom the RF INPUT.
Performance requirementis --30 dBm ±0.3 dB at 100 MHz ±2kHz.
HTest equipmentrequired:
Min loss attenuator, 50 -- 75 Ω
Signal Generator
Frequency Counter
Power Meter with High Sensitivity Sensor
1. Recall default power up settings by pressing UTIL 1 1.
Internal Calibrator